Found the two lamps in one thrift store and the two shades in another one...
The shades are IKEA and looked like this:
They had a bit wrong color sheme so I painted them with some watered down paint (hoping it would let the light still shining through - didn't work out too well!)
But I still think they look cute.
My mother in law has a plum tree in her garden (wich used to be our garden).
I craved german plum cake.
I liked the lamps on top of the piano too...